Files
punktfunk/scripts/windows
enricobuehler 84c47cd0a7 feat(security): run the Windows plugin runner as LocalService, not SYSTEM
The PunktfunkScripting scheduled task ran operator-installed plugin code
as SYSTEM with -RunLevel Highest — any plugin defect was a full
compromise of the box. The principal is now NT AUTHORITY\LocalService
(minimal privileges, no password to manage, exists at boot, loopback
networking works), registered without RunLevel:

- installer: New-ScheduledTaskPrincipal -UserId 'LocalService'
- plugins enable: converges the principal idempotently (migrating tasks
  an older installer or a dev box registered as SYSTEM) BEFORE starting,
  then grants LocalService read — via icacls, full-System32-path — on
  exactly the two SYSTEM/Admins-DACL'd files the runner's connect()
  needs: the scoped plugin-token and the TLS-pin cert.pem. Never
  mgmt-token. plugins disable revokes the grants; plugins status now
  prints the task principal so the migration is verifiable.
- build-scripting.ps1 mirrors the convergence + grants on dev deploys.

The usage text also mentions the new --allow-public-registry gate that
lands with the supply-chain commit.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 00:45:27 +02:00
..

Windows host build/deploy scripts

Helper scripts for the Windows host box (the RTX .173 lab box, repo at C:\Users\Public\punktfunk-native). Run them from the repo root in an elevated PowerShell.

One-time: persist the build environment

powershell -ExecutionPolicy Bypass -File scripts\windows\setup-build-env.ps1

Persists (Machine scope) the vars the host build needs (NVENC itself needs none — its entry points are runtime-loaded from the driver's nvEncodeAPI64.dll):

var value why
LIBCLANG_PATH C:\Program Files\LLVM\bin bindgen (libclang.dll)
CMAKE_POLICY_VERSION_MINIMUM 3.5 audiopus_sys / cmake crates

FFMPEG_DIR is not set — the --features nvenc build the RTX box uses does not link libavcodec (that is only the amf-qsv feature). The VS C++ toolchain is loaded per-build via vcvars64.bat (auto-discovered with vswhere).

Rebuild + redeploy the host service

powershell -ExecutionPolicy Bypass -File scripts\windows\deploy-host.ps1

Stops PunktfunkHost, backs up the current binary (punktfunk-host.exe.bak), builds --release -p punktfunk-host --features nvenc from the current source, then restarts the service on the new binary — with automatic rollback if the build fails or the new binary won't start. The service is down only for the build duration.

Web management console

On an installed host (the setup.exe) the console is set up automatically — no manual steps. The installer bundles the built (self-contained, no-node_modules) .output server + a portable bun and runs punktfunk-host.exe web setup, which registers the PunktfunkWeb scheduled task (at boot, as SYSTEM, restart-on-failure) running {app}\web\web-run.cmdbun …\.output\server\index.mjs on :47992, opens inbound TCP 47992, and writes the login password to %ProgramData%\punktfunk\web-password (ACL'd to Administrators + SYSTEM). The mgmt bearer token it proxies with is the host's own %ProgramData%\punktfunk\mgmt-token. Browse https://<host-ip>:47992 and log in with the password the installer shows on its final page. To change it, edit web-password and re-run the task: schtasks /run /tn PunktfunkWeb.

Rebuild + restart the console (dev box)

powershell -ExecutionPolicy Bypass -File scripts\windows\build-web.ps1

bun install && bun run build (Nitro noExternals -> a self-contained .output, no node_modules/.npmrc), then restarts the PunktfunkWeb task and checks :47992/login. Use this to iterate on the console against an installed host - punktfunk-host.exe web setup (or a fresh install) is what creates the task in the first place.

Plugin/script runner

powershell -ExecutionPolicy Bypass -File scripts\windows\build-scripting.ps1
powershell -ExecutionPolicy Bypass -File scripts\windows\build-scripting.ps1 -EnableTask

bun install && bun build src/runner-cli.ts --target=bun in sdk\ -> one self-contained runner-cli.js (effect + the SDK inlined; the operator's plugin import() stays a runtime import, gated on the same attempt= check CI and the .deb builder use), then lays it out as <exe-dir>\scripting\runner-cli.js + scripting-run.cmd with the bun runtime at <exe-dir>\bun\bun.exe.

That layout is load-bearing. punktfunk-host plugins add/remove/list forwards package ops to the runner, and on Windows it resolves the runner relative to the running exe (crates\punktfunk-host\src\plugins.rs). Since deploy-host.ps1 runs the service out of target\release, a bundle sitting only in the installed {app} leaves the freshly built exe reporting "the plugin runner isn't installed". The script deploys next to every host exe it finds - the built one and whatever the PunktfunkHost service actually runs.

The PunktfunkScripting task is registered disabled (opt-in) by the installer, so the script stages the bundle but does not silently enable it. Pass -EnableTask on a box you are validating plugins on (equivalent to punktfunk-host plugins enable).

Rebuild + redeploy everything

powershell -ExecutionPolicy Bypass -File scripts\windows\deploy-all.ps1
powershell -ExecutionPolicy Bypass -File scripts\windows\deploy-all.ps1 -EnableScriptingTask

Thin wrapper: runs deploy-host.ps1, build-web.ps1 then build-scripting.ps1 in sequence — the web console and plugin runner are always included, so the host binary and the runner bundle never drift apart. If the host build/start fails, deploy-host.ps1 rolls itself back and throws, which stops this script before the later steps run.

Typical flow after pulling new code

git pull
powershell -ExecutionPolicy Bypass -File scripts\windows\deploy-all.ps1